Keyestudio MFRC522 RFID S50 IC Card Module with SPI Port for Arduino
The Keyestudio MFRC522 RFID Module is a 13.56MHz contactless communication module designed for RFID card reading and writing applications. Based on the NXP MFRC522 chip, this module supports ISO/IEC 14443 Type A compatible cards and tags, including S50 Fudan cards and MIFARE classic cards. It provides stable, fast, and reliable wireless communication, making it ideal for Arduino, Raspberry Pi, ESP32, and embedded access control projects.
The module communicates through the SPI interface, enabling easy integration with Arduino UNO R3, Mega 2560, Nano, and other microcontroller boards. It is widely used in security systems, attendance systems, smart card projects, electronic locks, and IoT identification applications.
Features
- Based on MFRC522 RFID chip
- Supports 13.56MHz RFID communication
- Compatible with S50 Fudan and MIFARE cards
- SPI communication interface
- Fast and stable card reading performance
- Low power consumption
- Compact PCB design
- Easy integration with Arduino platforms
Technical Specifications
- Operating Voltage: 3.3V DC
- Operating Frequency: 13.56MHz
- Communication Interface: SPI
- Supported Protocol: ISO/IEC 14443 Type A
- Reading Distance: 0 – 60mm
- Data Transfer Rate: Up to 10Mbps
- Operating Current: 13mA – 26mA
- Module Size: Approx. 40mm × 60mm
Pin Configuration
- SDA → SPI Chip Select
- SCK → SPI Clock
- MOSI → SPI Data Input
- MISO → SPI Data Output
- IRQ → Interrupt
- GND → Ground
- RST → Reset
- 3.3V → Power Supply
Applications
- RFID access control systems
- Attendance systems
- Smart card identification
- Electronic door locks
- Security authentication projects
- Cashless payment systems
- Arduino RFID projects
- IoT automation systems
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